Investigation electrical and thermoelectric properties of CuO Gd2O3
K. Boonin(a,b)*, K. Singsoog(c), T. Seetawan(c), J. Kaewkhao(a,b)
(a)Physics Program, Faculty of Science and Technology, NakhonPathomRajabhat University, NakhonPathom, 73000, Thailand
(b) Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand
(c)Thermoelectric Research Laboratory, Center of Excellence on Alternative Energy, Research and Development Institution, Sakon Nakhon Rajabhat University, 680 Nittayo Rd. Mueang District, Sakon Nakon Province, 47000, Thailand
Abstract
In this work, CuGdO2 were prepared through the sintering of mixtures of CuO and Gd2O3 powders at 1373 K. The Seebeck coefficient and electrical resistivity were measured by ZEM-3 series in low pressure helium gas atmosphere at temperature ranges of 325520 K. The result shown that, electrical resistivity and power factor decrease with increasing of temperature while the power factor show the opposite trend. The power factor was calculated by P=S2/ (where S is Seebeck coefficient and is electrical resistivity) and The highest value obtained for the power factor was 4.47 W1m1K2 at 520 K.
Keywords: n-type, CuAlO2, Thermoelectric properties
Topic: Energy and environment materials